[fix] fix get_servo_version

Author: vimior

xarm/x3/servo.py

@@ -363,16 +363,16 @@ def _get_servo_version(id_num):
                 ret3 = self.get_servo_addr_16(id_num, 0x0803)
 
             code = 0
-            if ret1[0] in [0, 1, 2] and len(ret1) > 1 and ret1[1] < 1000:
-                versions[0] = ret1[1]
+            if ret1[0] in [0, 1, 2] and len(ret1) > 1:
+                versions[0] = ret1[1] if abs(ret1[1]) < 1000 else 0
             else:
                 code = ret1[0]
-            if ret2[0] in [0, 1, 2] and len(ret2) > 1 and ret2[1] < 1000:
-                versions[1] = ret2[1]
+            if ret2[0] in [0, 1, 2] and len(ret2) > 1:
+                versions[1] = ret2[1] if abs(ret2[1]) < 1000 else 0
             else:
                 code = ret2[0]
-            if ret3[0] in [0, 1, 2] and len(ret3) > 1 and ret3[1] < 1000:
-                versions[2] = ret3[1]
+            if ret3[0] in [0, 1, 2] and len(ret3) > 1:
+                versions[2] = ret3[1] if abs(ret3[1]) < 1000 else 0
             else:
                 code = ret3[0]
             # if code != 0: